For Ian Frazier, the Great Plains are a "Giant Time Park."

Writer Ian Frazier is known primarily as a humor writer for The New Yorker magazine. His new book, Great Plains, is describes a history of the region through Frazier's own trips driving 25,000 miles in a criss-cross of the area, and hours of research in the New York's Public Library.

Frazier is the author of "Family," a book which traces his ancestors back to the 1600s. His inspiration for the book came from old letters he found after the death of his parents in 1987 and 1988. Their death gave him the desire to find "a meaning that would defeat death" in the letters. Frazier is also the author of "Dating Your Mom," "Nobody Better, Better Than Nobody," and "Great Plains." He is a regular contributor to the "New Yorker."

Timothy Egan is the author of the book The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. Now out in paperback, the book was awarded the National Book Award for nonfiction. Egan is a national enterprise reporter for the New York Times, and was part of the team that won a Pulitzer Prize in 2001 for a series on race in America.